Remove Duplicates from String using Java

Removes duplicates from String will remove duplicate characters (if any) from String using Java programming language. For example, let’s say we have a string “jeejava” and we want to remove duplicates from this string. So in this string the duplicate characters are e, j, and a. Therefore after removing duplicate characters we will get the final string “jeav”.

Prerequisites

Knowledge of Java

Example Implementation

We will not only remove duplicate characters (if any) from the string but also take of removing the duplicates in O(n) time complexity. We will use here hashing to remove duplicate.